March 8 (Reuters) - The United States is weighing

sanctions on several Chinese tech companies, including chipmaker

ChangXin Memory Technologies, in a bid to further restrain

China's development of advanced semiconductors, Bloomberg News

said on Friday.

Citing people familiar with the matter, it said the commerce

department's bureau of industry and security was considering

adding ChangXin to the so-called entity list that restricts

access to U.S. technology, along with five more Chinese firms.

The department, the bureau, and ChangXin Memory Technologies

did not immediately respond to Reuters' requests for comment.

Reuters has reported that the United States moved last year

to deny American imports to a major SMIC plant after

it produced the chip powering Huawei's Mate 60 Pro phone.

The efforts halted millions of dollars worth of shipments of

chipmaking materials and parts from at least one supplier,

Entegris ( ENTG ).

The United States has moved aggressively in recent months to

halt shipments to China of more advanced AI chips, in its

efforts to stop Beijing receiving cutting-edge U.S. technologies

that could strengthen its military.